Feed-water heater



( No Model.)

' G. W. SLOANE.

FEED WATER HEATER. v

No. 248,516. Patented Oct. 18,1881.

wwwwmwww INVENTOR ATTORNEYS.

UNTTED STATES FFEEO PATENT GEORGE W. SLOANE, OF BROOKLYN, (GREEN POINT P. O.,) NEW YORK.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 248,516, dated October 18, 1881.

Application filed May 3, 1881. (No model.)

To all whom it may concern:

Be itknown that I, GEORGE W. SLoANE, of Brooklyn, (Green Point P. O.,) Kings county, New York, have invented a new and useful Improvement in Combined Feed Water Heaters and Steam-Generators, of which the following is aspecification.

Figure l is a side elevation of my improvement. Fig. 2 is a rear-end elevation of the same, the furnace-walls being shown in section; and Fig. 3 is a front-end elevation of the same, the furnace-walls and grate-bars being shown in cross-section.

Similar letters of reference indicate corresponding parts.

The object of this invention is to facilitate the heating of feed-water for steam-boilers and utilize the feed-water heater for generating steam.

Theinvention consists in constructing :1 001B bined feed-water heater and steam-generator of a pair of drums provided with water-inlet pipes and discharge or blo\v-offpipes,co1n1ected with the watenspace ot' the boiler by pipes, and connected by a series of graduated pipes with apair of connections, which are connected by pipes with the steam-space of the boiler, whereby a circulation will be maintained through the boiler, drums, and connections, and the iedwaterwill be heated and steam generated, as will be hereinafter fully described.

A represents a steam-boiler, B are the furnace-walls, and (J are the grate-bars, about the construction ofwhich there is nothing new.

D are two drums, which are placed below and partially in the rear of the rear end of the boiler A, and which are designed to serve as feed-water receivers, and also as mud-drums. Water is introduced into the drums D through pipes E from pumps or other water-reservoirs, which pipes are provided with stop-cocks or valves F in the ordinary manner. The drums D are emptied and cleaned through the blowoff pipes G, which are connected with the lower parts of the said drums, and are provided with stop-cocks or valves H in the ordinary manner.

IVith each drum D is connected the lower end of a pipe, I, the upper end of which is connected with the lower part of the water-space of the boiler A. With each drum D are also connected the lower ends of a series of pipes, J, with the upper ends of which are connected the rear ends of a series ofpipes, K. The pipes J are graduated in length, as shown in Fig. 1, so that the pipes K will be the one above the other, or in the same vertical plane. The pipes K incline upward toward their forward ends, and their said forward ends are connected with an upright connection, L, which is placed at the front of the boiler A.

From the upper part of each connection L a pipe, M, leads up along the forward end of the boiler A, and is connected with the upper part of the steam-space of the said boiler A.

With this construction a circulation is established through the boiler A and the drums D by the pipes I J K M and the connectionsL. \Vith this construction, also, the drums D, pipes J K M, and connections L being placed within the tire-chambers, and thus fully exposed to the heat, the water within said drums, pipes, and connections will be quickly heated and steam will be rapidly and freely generated, and will pass into the steam-space of the boiler, so that t he capacity of the boiler to generate steam will be greatly increased without increasing the size of the boiler. With this construction, also, the boiler will not be cooled and the steam within itcondensed by the introduction of feedwater.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In a combined feed-water heater and steamgenerator, the combination, with the boiler A, of the drums D, provided with the inlet-pipes E and the blow-oft pipes G, the connections L, and the circulation-pipes I J K M, substantially as herein shown and described, whereby the feedwater is heated and the steam-generating capacity of the boiler is increased, as set forth.

GEORGE W. SLOANE.

Witnesses:

JAMES T. GRAHAM, O. SEDGWIGK. 

